Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4357173 | Lens cleaning and polishing method | Perry Rosenthal | 1982-11-02 |
| 4330383 | Dimensionally stable oxygen permeable hard contact lens material and method of manufacture | Edward J. Ellis | 1982-05-18 |